2. Opening books is not necessarily beneficial, and sometimes (if you read bad books) it will cause damage. As educator Xu Teli said, "It's no use reading books about your family." Most unhealthy things come from reading those bad books. The criminal facts of some teenagers in today's society are a good proof, that is, they are polluted by those bad books and periodicals, infected with bad hobbies, and finally embark on the road of illegal crimes.
3. Liu Xiang of Han Dynasty once said: "Books are still medicine, and good reading can cure fools." Since books are medicine, they have two functions: first, good medicine will cure diseases; One is poison, which can kill people. Isn't it? In Germany in the 1920s, many people were regarded as Hitler's martyrs because of their bad influence on Mein Kampf. Bad books, like bad friends, may kill you. It's true. Now some students are addicted to martial arts or romance novels, reading those grotesque books all day, and "throwing" their homework aside, which leads to a decline in their academic performance, and finally draw water with a sieve. Just think, can a book like "Open" be said to be "beneficial"? "A good book is better than a treasure, and a bad book is worse than a robber." Therefore, whether it is beneficial to open a book depends on what volume to open first.
4. The Bishgaqiu in Nikolai Nikolai Gogol's Ghost reads everything. He is not a knowledgeable person, but a fool who lacks appreciation; Zhu Zeman in Zhuangzi Lieyu Crown learned a stunt of killing dragons. In fact, there is no place to kill dragons. Only then did he realize that there was no dragon in the world, and all his skills were in vain. In this way, it is always half the effort to open books indiscriminately, and it is not worth the loss!
5. Ma Su is familiar with the art of war and speaks the art of war clearly. However, when Zhuge Liang entrusted him with a heavy responsibility and led the troops to guard the street kiosks, he used the art of war to let the army camp on the mountain without food and water. As a result, Sima Yi was surrounded and cut off the water source, which led to failure. It can be seen that just opening books blindly may not be beneficial, but more importantly, practice and flexibility.